I have the old sleep system and use the black bag as insulation between the green and gortex. I was very comfortable at 50 and it may have dropped into the upper 40's with rain. I'm not sure how cold...
Type: Posts; User: Mouseskowitz
I have the old sleep system and use the black bag as insulation between the green and gortex. I was very comfortable at 50 and it may have dropped into the upper 40's with rain. I'm not sure how cold...